| Temperature Effect-Related High and Very High Cycle Fatigue Failure Analysis and Life Estimation of Forged Superalloy | |
| Lashari MI1; Li W1; Hu ZF1; Li C(李成)2; Cao XB1; Jin YZ1 | |
| Corresponding Author | Li, W.([email protected]) |
| Source Publication | METALS AND MATERIALS INTERNATIONAL
 |
| 2025-02-14 | |
| Pages | 18 |
| ISSN | 1598-9623 |
| Abstract | To analyze the temperature effect-related failure behavior and estimate the fatigue life of forged superalloy, high- and very-high-cycle fatigue experiments were performed. The microstructural characteristics, failure modes, and crack growth behavior are characterized by two- & three-dimensional microscopy techniques, along with electron-backscatter-diffraction (EBSD) analysis. The fractographic analysis demonstrated that surface failure at both 25 degrees C and 650 degrees C is attributed to surface flaws, whereas subsurface and internal failures are primarily driven by faceted cracking, often facilitated by inclusions or pores at 25 degrees C, and solely assisted by large grains at 650 degrees C. EBSD analysis revealed that crack propagation occurs in a transgranular manner, leading to the formation of facets; however, it is impeded by a complex structure comprised of high-angle grain boundaries and twin boundaries. In addition, under the influence of both temperatures, the threshold values for small as well as long cracks are elucidated. Finally, a fatigue life assessment approach that accounts for primary defects and different temperatures is established, and the prediction results demonstrate a closer alignment with the experimental data. |
| Keyword | Nickel-based superalloy Failure mechanism Fatigue crack growth Elevated temperature Life estimation |
| DOI | 10.1007/s12540-025-01912-z |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001420985200001 |
| WOS Keyword | NICKEL-BASE SUPERALLOY ; CRACK INITIATION ; BEHAVIOR ; INCLUSIONS ; HARDNESS ; GROWTH |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Project | National Natural Science Foundation of China[52175128] ; National Natural Science Foundation of China[20232501] ; State Key Laboratory for Mechanical Behavior of Materials |
| Funding Organization | National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory for Mechanical Behavior of Materials |
| Classification | 二类/Q1 |
| Ranking | 3+ |
| Contributor | Li, W |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/100105 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Lashari MI,Li W,Hu ZF,et al. Temperature Effect-Related High and Very High Cycle Fatigue Failure Analysis and Life Estimation of Forged Superalloy[J]. METALS AND MATERIALS INTERNATIONAL,2025:18.Rp_Au:Li, W |
| APA | Lashari MI,Li W,Hu ZF,李成,Cao XB,&Jin YZ.(2025).Temperature Effect-Related High and Very High Cycle Fatigue Failure Analysis and Life Estimation of Forged Superalloy.METALS AND MATERIALS INTERNATIONAL,18. |
| MLA | Lashari MI,et al."Temperature Effect-Related High and Very High Cycle Fatigue Failure Analysis and Life Estimation of Forged Superalloy".METALS AND MATERIALS INTERNATIONAL (2025):18. |
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